However, there may be some exceptions to this rule. For example, if the 19-year-old is emancipated, which means that they have been granted legal independence by a court, then they may be able to move out of state without parental consent. Additionally, if the 19-year-old is in danger of abuse or neglect at home, they may be able to seek emancipation or temporary custody from the courts.
It is important to note that these are general guidelines and that the specific laws and regulations governing minors may vary from state to state. It is therefore always best to consult with an attorney or other legal expert to get specific advice on your situation.